Current timestamp: 17/05/2025 19:08:13
AgeAlertAnonymousAppealsApplicationsApply Or RegisterArea OutlineArrow DownArrow LeftArrow RightArrow UpAutomatic DoorsBack ArrowBusinessCalendarCashArrow DownArrow LeftArrow RightArrow Down[Missing text '/SvgIcons/Symbols/Titles/icon-chrome' for 'English (United Kingdom)']ClockCloseContactDirectionsDocumentDownloadDrawDrugExpandExternal LinkFacebookFb CommentFb LikeFiletype DefaultFiletype DocFiletype PdfFiletype PptFiletype XlsFinance[Missing text '/SvgIcons/Symbols/Titles/icon-firefox' for 'English (United Kingdom)']First AidFlickrFraudGive FeedbackGlobeGuide DogHealthHearing ImpairedInduction LoopInfoInstagramIntercom[Missing text '/SvgIcons/Symbols/Titles/icon-internet-explorer' for 'English (United Kingdom)']LaptopLiftLinkedinLocal Activity[Missing text '/SvgIcons/Symbols/Titles/icon-location' for 'English (United Kingdom)']LoudspeakerLow CounterMailMapMap PinMembershipMenuMenu 2[Missing text '/SvgIcons/Symbols/Titles/icon-microsoft-edge' for 'English (United Kingdom)']Missing PeopleMobility ImpairmentNationalityNorth PointerOne Mile RadiusOverviewPagesPaper PlaneParkingPdfPhonePinterestPlayPushchairRefreshReportRequestRestart[Missing text '/SvgIcons/Symbols/Titles/icon-rotate-clockwise' for 'English (United Kingdom)']Rss[Missing text '/SvgIcons/Symbols/Titles/icon-safari' for 'English (United Kingdom)']SearchShareSign LanguageSnapchatStart AgainStatsStats And Prevention AdviceStopSubscribeTargetTattosTell Us AboutTickTumblrTwenty Four HoursTwitter LikeTwitter ReplyTwitter RetweetUploadVisually ImpairedWhatsappWheelchairWheelchair AssistedWheelchair ParkingWheelchair RampWheelchair WcYoutubeZoom InZoom Out

Leave this site

Cookies

We use some essential cookies to make our website work. We’d like to set additional cookies so we can remember your preferences and understand how you use our site.

You can manage your preferences and cookie settings at any time by clicking on “Customise Cookies” below. For more information on how we use cookies, please see our Cookies notice.

Accept cookies Reject cookies Customise cookies

Your cookie preferences have been saved. You can update your cookie settings at any time on the cookies page.

Your cookie preferences have been saved. You can update your cookie settings at any time on the cookies page.

Sorry, there was a technical problem. Please try again.

Skip to main content

Skip to main navigation

Welcome

This site is a beta, which means it's a work in progress and we'll be adding more to it over the next few weeks. Your feedback helps us make things better, so please let us know what you think.

Show me the site

Go to Nottinghamshire Police homepage

  • Back to Report

    • Crime
    • Domestic abuse
    • Rape, sexual assault and other sexual offences
    • Road traffic incident
    • Report antisocial behaviour
    • Missing person
    • Fraud, bribery or corruption
    • Spiking
    • Stalking or harassment
    • Lost or found property
    • Lost or stolen vehicles
    • Hate crime
  • Back to Tell us about

    • Tell us about possible terrorist activity
    • How to tell us about something you've seen or heard
    • An existing case or report
    • A procession or event you are planning
  • Back to Apply or register

    • Careers and volunteering
    • Charity collection licences
    • Compensation for victims of crime
    • Firearm, shotgun or explosives certificate
    • Attend a misconduct hearing
    • Pedlar's certificate
  • Back to Request

    • A collision report
    • Intellectual property (IP) licence
    • Compensation for something the police have done
    • Information: about the police, about yourself or someone else
  • Back to Thanks and complaints

    • Feedback about the website
    • Complaints
    • Say thanks
  • Your area
  1. ...
  2. News

Sex offender unmasked by bragging messages

Main article content

News
Published: 15:00 04/07/2024

Chiziem Omisa 1.jpg

A sex offender has been jailed after bragging to a friend on WhatsApp about an encounter he told police had not happened.

Chiziem Omisa, now aged 25, sexually assaulted a young woman in May 2019 after meeting her online and showering her with flirtatious and flattering messages.

The woman, who repeatedly asked him to stop, initially decided against calling the police but was identified by officers during a forensic examination of Omisa’s mobile phone.

The device had been seized when Omisa was arrested in connection with another alleged offence, and revealed a torrent of messages to her.

When detectives tracked the woman down, she recalled how Omisa – using an assumed name – had met up with and assaulted her at his student accommodation in Nottingham after finding her profile on Instagram.

She explained how Omisa had then pressured her to keep silent – even suggesting that she could be kicked out of her university if she took the matter further.

Damning evidence

Omisa was arrested again and denied any sexual contact with the woman.

However he was undone be a series of crude WhatsApp messages – sent to a friend on the day of the incident from his phone – boasting of an encounter with the victim.

Because Omisa had already admitted to being with the woman at the time, this single social media exchange proved to be a crucial bit of evidence,

Omisa later pleaded guilty to one count of sexual assault by penetration.

He also pleaded guilty to stalking two other young women he met while on bail for the Nottingham offence, and to perverting the course of justice.

Appearing at St Albans Crown Court on Thursday 27 June, Omisa, of Potters Bar, Hertfordshire, was jailed for four years and four months.

Restraining order and restrictions

He was also handed a restraining order forbidding any future contact with his victims, and made the subject of a sexual harm prevention order that will closely restrict his behaviour once he is released.

Specifically, Omisa will have to make all his electronic devices available for inspection by police, register all social media accounts with officers, and refrain from sending any unsolicited friend requests to women via social media.

Police Staff Investigator Kerry Humphreys, of Nottinghamshire Police, said:

“Omisa is a young man with an utterly toxic attitude towards women.

“Analysis of his mobile phone revealed a very clear pattern of behaviour by which he would use assumed names to relentlessly pursue them on social media and in person.

“Taken by itself this behaviour is not illegal, but refusing to take no for an answer is – as is harassing and intimidating women when they reject these advances. 

“Thanks to his own crude boasting and the bravery and determination of his victims, Omisa will now spend a considerable time behind bars and will face extensive restrictions once he is released.”

Share

Is there a problem with this page?

Footer navigation

Nottinghamshire Police

  • News
  • Contact us
  • Find a police station
  • Careers
  • About us
  • Campaigns
  • Privacy notice
  • Cookies
  • Terms and conditions
  • Accessibility

Information and services

  • Advice and information
  • Accessing information (FOI)
  • Crime prevention advice
  • Stats and data
  • Report
  • Tell us about
  • Apply or register
  • Request
  • Feedback

Partners

  • Ask the Police
  • Police and Crime Commissioner

Follow us on

© Copyright 2025. All rights reserved.